<template>
  <div id="login">
      <div class="login_box">
        <!-- 头像区域 -->
          <div class="avatar_box">
            <img src="../../assets/img/图层 148@2x.png" alt="">
          </div>
          <!-- 登录表单区域 -->
      <el-form ref="loginFormRef" :model="loginForm" label-width="0px" class="login_form" :rules="rules">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input placeholder="请输入账号" v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input placeholder="请输入密码" v-model="loginForm.password"  prefix-icon="el-icon-lock" show-password></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>

export default {
  name: "Login",
  data() {
    return{
      loginForm: {
        username:'admin',
        password:'123456'
      },
       rules: {
          username: [
            { required: true, message: '请输入登录名称', trigger: 'blur' },
            { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
          ],
          password:[
             { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 10, message: '长度在 6 到 10 个字符', trigger: 'blur' }
          ]
      },
    }
  },
  methods: {
    //点击重置按钮，重置登录表单
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    //点击登录按钮，返回登录信息
    login(){
      this.$refs.loginFormRef.validate( async valid => {
       if(!valid) return;
       const { data:res } = await this.$http.post("login", this.loginForm)
       if(res.meta.status !== 200) return this.$message.error('登录失败！！！')
          this.$message.success('登录成功！！！');
          window.sessionStorage.setItem('token', res.data.token);
          this.$router.push("/home")
      })
    }
  }

};
</script>

<style lang="less" scoped>
  #login {
    height: 100%;
    background-color: #144885;
  }
  .login_box {
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 5px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%,-50%);
          .avatar_box{
            width: 130px;
            height: 130px;
            border: 1px solid #eee;
            background-color: #ffffff;
            border-radius: 50%;
            box-shadow: 0 0 10px #ddd;
            position: absolute;
            padding: 10px;
            left: 50%;
            transform: translate(-50%,-50%);
            img {
              width: 100%;
              height: 100%;
              border-radius: 50%;
          }
      }
  }
  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
    .login_input {
      height: 40px;
      border: 1px solid #1d1d1d;
      border-radius: 5px;
      outline: none;
      /deep/ .el-input__inner {
       outline: none;
    }
    }
    
  }
  .btns {
    display: flex;
    justify-content: flex-end; 
  }
</style>
